Combined air cooler and heater



FIG. 1 is a top, front and side perspective view of a combined air cooler and heater showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a left side elevational view thereof; and

FIG. 7 is a rear elevational view thereof. 

The ornamental design for combined air cooler and heater, as shown and described. 